This product combines comprehensive coverage and ease of use not found in commercially available books, featuring all questions from Heisei 1 (1989) to Reiwa 6 (2024) plus options from the Showa era, all in A5 size. * Includes all past questions from Heisei 1 to Reiwa 6, plus important options from the Showa era. * Questions and explanations are on facing pages, with explanations generally limited to one page for compactness. * Clear and thorough explanations. Clearly indicates sections that have been removed or become invalid due to revisions. * Easy-to-read, easy-to-use, and compact A5 size. ◆ Format: A5 size ※ Simple binding (perfect binding). ※ Not sold in general bookstores.